Strain Name:
B6.Cg-Cyp4f18tm1.1Pchr/Mmmh
Stock Number:
036956-MU
Citation ID:
RRID:MMRRC_036956-MU
Other Names:
Cyp4f18 -/-, CYP4F18 knockout

Strain Information

Cyp4f18tm1.1Pchr
Name: cytochrome P450, family 4, subfamily f, polypeptide 18; targeted mutation 1.1, Peter Christmas
Synonyms: Cyp4f18 knockout, Cyp4f18-
Type: Allele
Species: Mus musculus (mouse)
Chromosome: 8
Alteration at locus: Knockout
Cyp4f18
Name: cytochrome P450, family 4, subfamily f, polypeptide 18
Synonyms: 1810054N16Rik
Type: Gene
Species: Mouse
Chromosome: 8
Alteration at locus: Knockout
NCBI: 72054
Homologene: 128623
Genetic Alterations
Exons 8 &9 of Cyp4f18 gene flanked by two loxP sites were deleted by cre recombinase.
Genotype Determination
ES Cell Line
D1 Derived From (129S6/SvEvTac x C57BL/6J)F1
Phenotype

Homozygous: Cyp4f18 is functionally inactive, and neutrophils from mice lack the omega oxidation pathway of leukotriene B4 metabolism. 

Heterozygous: No phenotype

Mammalian Phenotype Terms
Allelic Composition: (Genetic Background: )

MeSH Terms
  • Animals
  • Cytochrome P-450 Enzyme System/genetics
  • Cytochrome P-450 Enzyme System/metabolism
  • Cytochrome P450 Family 4
  • Disease Models, Animal
  • Humans
  • Inflammation/genetics
  • Inflammation/metabolism
  • Kidney/metabolism
  • Kidney/pathology
  • Leukotriene B4/genetics
  • Leukotriene B4/metabolism
  • Mice
  • Mice, Knockout
  • Neutrophils/metabolism
  • Reperfusion Injury/genetics
  • Reperfusion Injury/pathology
Strain Development
The linearized Cyp4f18 targeting vector was electroporated into D1 ES cell derived from (129S6/SvEvTac x C57BL/6J)F1. Selected ES cells were injected into blastocysts and implanted into foster mothers, resulting in chimeric offspring with germline transmission of the modified allele. To delete the Neo gene, mice were mated with 129S4/SvJaeSor-Gt(ROSA)26Sortm1(FLP1)Dym/J that express FLP recombinase generating mice with a “floxed” Cyp4f18 allele: the selection cassette flanked by FRT sites is deleted leaving exons 8 and 9 flanked by two loxP sites. The floxed allele (fl) was transferred to a C57BL/6 background by repeated backcrossing. To generate the conventional knockout, male Cyp4f18 fl/+ mice were mated with female mice that have ubiquitous expression of cre recombinase (C57BL/6J-Hprt1 cre deleter strain).
Suggested Control Mice
Wild-type littermates or C57BL/6 mice
MMRRC Genetic QC Summary
The MMRRC Centers have developed a genetic QC pipeline using MiniMUGA array genotyping to provide additional information on strain backgrounds for MMRRC congenic and inbred strains. For more information on when data may be available, or to request genotyping for a strain of interest, please contact mmrrc@missouri.edu. Older strains may not have this information.
  • Immunology and Inflammation
  • Metabolism
  • Models for Human Disease
    • Inflammatory disease
Donor
Peter Christmas, Ph.D., Massachusetts General Hospital.
Primary Reference
Winslow V, Vaivoda R, Vasilyev A, Dombkowski D, Douaidy K, Stark C, Drake J,Guilliams E, Choudhary D, Preffer F, Stoilov I, Christmas P. Altered leukotriene B4 metabolism in CYP4F18-deficient mice does not impact inflammation followingrenal ischemia. Biochim Biophys Acta. 2014 Jun;1841(6):868-79. doi:10.1016/j.bbalip.2014.03.002. Epub 2014 Mar 14. (Medline PMID: 24632148)

Colony and Husbandry Information

Colony Surveillance Program and Current Health Reports

Mice recovered from a cryo-archive will have health surveillance performed on recipient females. Health reports will be provided prior to shipment. If you require additional health status information, please email mmrrc@missouri.edu.
Coat Color
Black
MMRRC Breeding System
The mice were originally backcrossed to make the strain congenic on the C57BL/6 background followed by sib-mating.
Breeding Scheme(s)

Wild-type (STRAIN) female x Heterozygous male or reciprocal mating

Wild-type female x Heterozygous male littermate or reciprocal mating

Homozygous female x Homozygous male littermate

Generation
N8F1+
Overall Breeding Performance
Excellent
Viability and Fertility: Female Male Comments
Homozygotes are viable: Yes Yes
Homozygotes are fertile: Yes Yes
Heterozygotes are fertile: Yes Yes
Age Reproductive Decline: 12 months 12 months
Average litter size
5-9
Recommended wean age
4 weeks

Order Request Information

Limited quantities of breeder mice (recovered litter) are available from a cryoarchive; recovered litter usually available to ship in 3 to 4 months.

Cryopreserved material may be available upon request, please inquire to mmrrc@missouri.edu for more information.

Distribution of this strain requires submission of the MMRRC Conditions of Use (COU). A link to the COU web form will be provided via email after an order has been placed; the form should be completed then or the email forwarded to your institutional official for completion.

The donor or their institution limits the distribution to non-profit institutions only.

Additional charges may apply for any special requests. Shipping costs are in addition to the basic distribution/resuscitation fees. Information on shipping costs and any additional charges will be provided by the supplying MMRRC facility.

Click button to Request this one strain. (Use the MMRRC Catalog Search to request more than one strain.)
MMRRC Item # Description Distribution Fee / Unit (US $)
*Shipping & Handling not included*
Units Notes
036956-MU-RESUS Litter recovered from cryo-archive $2,624.00 / Non-Profit Litter Recovered litter4; additional fees for any special requests.
Cryopreserved material may be available upon request, please inquire to mmrrc@missouri.edu for more information.

1 The distribution fee covers the expense of rederiving mice from a live mouse; you will receive the resulting litter. The litter will contain at minimum one mutant carrier; the actual number of animals and the gender and genotype ratios will vary. (Typically, multiple breeder pairs can be established from the recovered litter.) Prior to shipment, the MMRRC will provide information about the animals recovered. If you anticipate or find that you need to request specific genotypes, genders or quantities of mice in excess of what is likely from a resuscitated litter, you may discuss available options and pricing with the supplying MMRRC facility.

2 An aliquot contains a sufficient number of embryos (in one or more vials or straws and based on the transfer success rate of the MMRRC facility) to transfer into one to three recipients. The MMRRC makes no guarantee concerning embryo transfer success experienced in the recipient investigator's laboratory. Neither gender nor genotype ratios are guaranteed.

3 An aliquot is one straw or vial with sufficient sperm to recover at least one litter of mice, as per provided protocols, when performed at the MMRRC facility. The MMRRC makes no guarantee concerning the success of these procedures when performed outside the MMRRC facilities.

4 The distribution fee covers the expense of resuscitating mice from the cryo-archive; you will receive the resulting litter. The litter will contain at minimum one mutant carrier; the actual number of animals and the gender and genotype ratios will vary. (Typically, multiple breeder pairs can be established from the recovered litter.) Prior to shipment, the MMRRC will provide information about the animals recovered. If you anticipate or find that you need to request specific genotypes, genders or quantities of mice in excess of what is likely from a resuscitated litter, you may discuss available options and pricing with the supplying MMRRC facility.

To request material from the MMRRC: Please fill out our on-line request form (accessible from the catalog search results page, or click the Request this Strain button in the fees section). If you have questions or need assistance completing this form, you may call Customer Service at (800) 910-2291 (in USA or Canada) or (530) 757-5710 (international calls). Before you call, please have with you: the MMRRC item number, quantity needed, Bill-to and Ship-to contact information.